Thats really cool. Tho i noticed a bug in that state where i was able to "repair" cameras before the quest, which resulted in them not getting fixed but camera itself dissapearing. Aswell as if you put the floppy disc insice the pc before turning on the power, it will not count toward the camera quest.
In theory, you should be able to place the floppy inside the computer then flip the CCTV switch and finally interact with the computer to turn it on. It should work regardless of the order. But perhaps is not well explained in game. We will check it regardless.
The cameras not counting however, that's an issue indeed, we will need to look into it. Thanks for letting us know.